|Support type:||Scholarships in Brazil - Master|
|Effective date (Start):||March 01, 2013|
|Effective date (End):||February 28, 2015|
|Field of knowledge:||Physical Sciences and Mathematics - Chemistry - Physical-Chemistry|
|Principal researcher:||Luiz Henrique Capparelli Mattoso|
|Grantee:||Marcos Vinicius Lorevice|
|Home Institution:||Embrapa Instrumentação Agropecuária. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). São Carlos , SP, Brazil|
The discarding increasingly of packages produced from polymers derived from petroleum has significantly increased the environmental impacts and consequently the concern in reducing such damage. One of the ways to decrease the damage has been the production of packaging from biodegradable polymers, low cost and renewable. The pectin, polysaccharide of plant origin, used to make films, is biodegradable and renewable, but it presents unfavorable physical properties: high water solubility, low barrier property to water vapor and low mechanical strength. The search to increase physical properties has been important in very studies that add compounds into matrices of the polymers. The addition of nanoparticles showed an improvement in hydrophobic characteristic, barrier properties and mechanical properties of edible films. For this reason, this project aims to produce films of pectin with nanoparticles of chitosan and films of pectin with nanoparticles of poly(µ-caprolactone), in which will be studied the correlation composition-structure of the films and will be subsequently added puree of a vegetable in the films to improve sensory properties and nutritional. Chitosan nanoparticles will be produced by gelatinization ionotropic and nanoparticles of PCL will be synthesized by nanoprecipitation. Zeta potential analysis and particles size will be investigated. The films will be produced by casting and characterized by: thickness, FT-IR analysis, mechanical properties, thermal analysis, water vapor permeability, atomic force microscopy, scanning electron microscopy and antimicrobial activity tests. The potential application of the films prepared would be in edible films with flavor and odor to extend the shelf life of products.